It's one of those days again: Apple held a product announcement today, announcing several new products. The most important of which was rumoured about for a long time now: a smaller iPad. It's called the iPad mini, and has the potential to become the best-selling iPad - and thus, the best selling tablet.

Well, it's like coding iStuff in the old fashioned "pixel" scale, while Android and OpenGL provides "viewport" scale (from -1 to 1). Modern OS do use the DPI factor to adapt UI size to the screen resolution, strange that Apple still cannot cope with just an arithmetical operation to adapt any "viewport" sale to any "pixel" resolution.